Answer:
(2,10) or x=2 y=10
Step-by-step explanation:
1. Pick one of your equations and solve for a variable. I chose the first equation and solved for x.
5x-2y=-10 (Move the -2y to the other side, you need to do the opposite so you add +2y to -10)
5x=2y-10 (Divide the 5 from the x)
x=2/5y-2
2. Now take what you got for x and plug it into the x variable on the other equation.
3(2/5y-2)+6y=66 (Multiply 3 by 2/5y and -2)
6/5y-6=6y=66 (Move the -6 to the other side and add 6/5y to 6y)
36/5y=72 (Since the number on the y is a fraction, you must do the opposite to the other side)
y=72/1 x 5/36 (Flip your fraction and multiply it by the 72)
y=10
3. Now that you have one of the variables solved for, in order to get the other we must plug in what we have to the first equation.
5x-2(10)=-10 (Multiple 2 by 10)
5x-20=-10 (Move -20 to the other side, since you do the opposite add +20 to the -10)
5x=10 ( Divide 10 by 5)
x= 2
4. If needed, plug in the values of x and y to check your solution.
Hope this could help! :)
What is the volume of a cube with an edge length
of 2/3 foot?
Answer:
V= 512 inches or, 42.67 feet
Step-by-step explanation:
So a cube has the same length on all sides so you would multiply length times with times area or V = a^3
So, 2/3 foot is equal to 8 inches so you would do V = 8^3 which would get you the answer,
please help marking brainlist
Answer:
-3
Step-by-step explanation:
-9/3=-3
Answer:
-3
Step-by-step explanation:
-3 times 3 equals -9
PLEASE HELP ASAP, MARKING BRAINLIEST!!!
What is the value of x and y?
Answer:
x = 9 ; y = 18
Step-by-step explanation:
This is a 30° 60° 90° triangle meaning the length of the big leg will be the value of the small leg times √3 and the hypotenuse will be double the length of the small leg.
Answer:
x = 9
y = 18
Step-by-step explanation:
tan(60) = 9 radical 3 / x
x = 9 radical 3 / tan(60)
x = 9
a² + b² = c²
9² + 9radical3² = c²
324 = c²
c = 18
y = 18
Para embaldosar un salon de 48 metros cubicos de area se han necesitado 375 tablas rectangulares en las cuales un lado medira 8 cm menos que el otro . Encuentra las dimensiones de las tablas.
Teams in the National Football League in America are divided into two conferences: the AFC and the NFC. Some
teams have animals as their mascots, and others do not. The following two-way table displays this data.
How many teams in the AFC have an animal mascot?
teams
Mascot
AFC
NFC
Animal
7
8
Non-animal
9
8
Answer:
7
Step-by-step explanation:
7 teams in the AFC have an animal mascot
Answer:
7 teams
Step-by-step explanation:
The graph says 7 animals under AFC
Construct a 95% confidence interval for the true difference in proportions of male and female smokers. Use p1^ for the proportion of men who smoke. Round your answers to three decimal places.
Answer:
ok?
Step-by-step explanation:
6 3/5 - 2 4/11=?
Show your work :)
Answer:
4.23636363636 is the ans☺️:)Step-by-step explanation:
Thanku♥️Using substitution, find the ordered pair (the point) where
both of these equations meet. Include parentheses and no
spaces in your answer.
X=4
3x - y = -1
Answer:
(4,13)
Step-by-step explanation:
Brainleist pls?
If d - 12.6, r=
PLZ HELP I HAAVE TO SUBMIT IN 3 MIN
Answer:
is there a picture to go along with it?
Roger jarred 15 liters of jam after 2 days. How much jam did Roger jar if he spent 6 days making jam?
Answer: 45 liters
Step-by-step explanation:
If Roger jars 15 liters of jam in 2 days, we can divide to see how much liters of jam Roger can jar in 1 day. We can divide 15 by 2 to find how much jam can be jarred in one day.
15 / 2 = 7.5.
Roger can jar 7.5 liters of jam every day.
Now we can multiply 7.5 by 6 to find how much jam Roger can jar at the end of 6 days.
7.5 x 6 = 45.
Therefore, Roger can jar 45 liters of jam in 6 days.
Who is the president of Australia?
Answer:
Queen Elizabeth ll
Step-by-step explanation:
Australia's head of state is Queen Elizabeth II.
I'm not the smartest but um does anybody know what my teacher means by this? Do I do all the evens or:
"You dont need to do ALL the evens...do EVERY OTHER EVEN, that way there are only 15 problems"
Answer:
This is the even numbers out of 100. So Do every other one so in you case 2,4,6,8,10,12,14,16,18,20,22,24,26,28,30.And all them problem you do add up to 15 total of what you completed( why they said there will only be 15 problems AKA the ones you solve)
Step-by-step explanation:
Hope this helps :)
Eugene can beat two levels every hour how many levels can he completed 3.5 hours
Answer:
~6.5 Levels
Step-by-step explanation:
2 levels every hour = 2:1
we take that ratio and multiply it by 3 for starters:
6 and half of our ratio
basically 6.5
10. What is the ratio of the trigonometric ratio? Simplify as needed. *
12/35
tan = opp/adj
tan = 12/35
What is the slope of the line that passes through these two points (10, 20) and (13, 30)?Show your work
Answer:
(y-y1)/(x-x1)=(y2-y1)/x2-x1)
(y-20)/(x-10)=(30-20)/(13-10)
......
now you can easily solve it
Two point form
what is the slope of a line that goes through these 2 points? (-2, 1) (2, -3)
Answer:
-1
Step-by-step explanation:
SHOW YOUR WORK PLS !!!!!!
Answer:X=16*4=64
Soowwwyyy..
Q2. In a camp food was enough for 400 people for 23 days. If 60 more people joined the camp, find the number of days the food will last?
Q3. Given that y is directly proportional to x and that y= 40 when x= 200, find the value of
(a) y when x= 15
(b) x when y= 8
Q4. If y is inversely proportional to x and that y= 8 when x= 30, find the value of:
(a) the value of y when x= 4
(b) the value of x when y= 360
Answer:
Q2)
We have food for 400 people, and it will last for 23 days.
Then we have an inverse relation, where the number of days decreases as the number of people increases, this means that we have a relationship like:
23 days = K/400 people.
Then we get:
(23 days)*(400 people) = K = 9200 days*people.
Now if we increase the number of people by 60, we get.
people = 460
Then the number of days that this will last is:
D = (9200 days*people)/460 people = 20 days.
The food will last for 20 days.
Q3) We have a proportional relationship (y = k*x) such that y = 40 when x = 200, then we get:
40 = k*200
With this, we can find the value of k
40/200 = k = 0.2
Then the proportional relationship is:
y = 0.2*x
a) We need to replace x by 15.
y = 0.2*15 = 3
y = 3
b) We need to replace y by 8.
8 = 0.2*x
8/0.2 = x = 40
x = 40
Q3) y is inversely proportional to x (y = k/x), and y = 8 when x = 30.
Then we get:
8 = k/30
Then the value of k is:
8*30 = k = 240
then the relationship is:
y = 240/x
a) we need to replace x by 4
y = 240/4 = 60
y = 60
b) we need to replace y by 360
360 = 240/x
360*x = 240
x = 240/360 = 0.666...
x = 0.666...
4÷5/9 will give brainliest to right answer
Answer:
.0888 repeating
Step-by-step explanation:
4 ÷ 5 ÷ 9 work left to right
Answer:
0.088
Step-by-step explanation:
4÷5/9 = ?
First let's see how much 4÷5 is, you will get the answer as 0.8 or 8/10.
Now, we need to calculate how much 0.8/9 = ? The answer is 0.088.
Question 3 of 10
The triangles shown below must be congruent.
600
60
12
12
2010
61°
O A. True
B. False
Help!! Last one giving 15 points and brainlesit
Answer:
B
Step-by-step explanation:
2-1/2 x 1 x 1/2 = 1-1/4
Answer:
C
Step-by-step explanation:
Multiply 1, 1 1/2, and 1/2 to get your volume
= 1 1/4
Then multiply 1 1/4 by 8 to get your half units
=10
Annie wants to create a right triangle with side lengths 12 centimeters, 35 centimeters, and
37 centimeters.
Is this possible? Why or why not?
Yes, because 12 + 35 is not equal to 37.
Yes, because 12? + 352 is equal to 372
No, because 12 + 35 is greater than 37.
No, because 12? + 352 is less than 372.
Answer: yes because 12^2+35^2=37^2
Step-by-step explanation:
In ΔFGH, the measure of ∠H=90°, HG = 56, FH = 33, and GF = 65. What ratio represents the cosine of ∠G? ASAP PLS
The value of ratio which represents the cosine of ∠G is,
⇒ cos G = 56/65
What is mean by Triangle?A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.
We have to given that;
In ΔFGH,
The measure of ∠H=90°, HG = 56, FH = 33, and GF = 65.
Now, By the formula;
⇒ cos θ = Base / Hypotenuse
Hence, We get;
⇒ cos G = GH / GF
⇒ cos G = 56/65
Thus, The value of ratio which represents the cosine of ∠G is,
⇒ cos G = 56/65
Learn more about the triangle visit;
brainly.com/question/1058720
#SPJ1
Please solve needed as soon as possible thank you I really appreciate it
Answer:
143
Step-by-step explanation:
Substitute n=3 into the problem
6([tex]3^{3}[/tex])-2([tex]3^{2}[/tex]) +3-4
Then figure out squared and power by 3
6(27)-2(9)+3-4
Next multiply
162-18+3-4
Finally, add and subtract
144+3=147
147-4=143
OMG LAST QUESTION IDNSKSNKSKNDLKNKNDK
Answer:
1. 38 gallons per gas, 2. $3.74 per gallon
Step-by-step explanation:
PLEASE I NEED THE ANSWER NOW 11 POINTS FOR CORRECT ANSWER BRAINLIEST TOO
Answer:
I believe its 3.3m
Step-by-step explanation:
I haven't taken geometry in a few years so sorry if its wrong
graph 9x+15y=45
help ?
need help it is math
Answer:
it is 100
Step-by-step explanation:
It takes Evan 6 3/4 hours to mow 3 lawns .It takes him 2 1/3 hours to mow
Answer:
It takes him hours to mow the third lawn
Explanation:
We are given that Evan takes hours to mow Mr. Gals lawn and hours to mow Mrs. Lee's lawn
This means that:
Time taken to mow the two lawns = hours
Now, we are given that the time taken to mow the three lawns is hours
This means that:
Time taken to mow the third lawn = hours
Hope this helps :)
If 40% of the students in the class are boys, and if there are 15 girls in the class, then how many students are in the class? * 1 point
Answer:
25
Step-by-step explanation:
15/6.0=2.5
2.5x4=10
2.5x6=15
10+15=25
10 boys and 15 girls
Answer:
25
Step-by-step explanation:
Let's set up "x" as the total number of students. So now we can set up an equation:
40%x+15=x rewritten as:
.4x+15=x Subtract .4x from both sides will give us:
15=.6x Now divide each side by .6 to be:
25=x Therefore we know there are 25 students in the class.
Make sense?